Reports: 12-hour cease-fire in Gaza

Palestinians stand behind burning tires during clashes with Israeli security forces following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. AFP PHOTO / AHMAD GHARABLI (Photo credit should read AHMAD GHARABLI/AFP/Getty Images)(Photo: AHMAD GHARABLI AFP/Getty Images)

GAZA CITY - Israel has announced a unilateral 12-hour cease-fire in Gaza starting on Saturday morning, according to several news reports.

Both Reuters and Yahoo! News reported that the cease-fire comes after Israel's Security Cabinet unanimously rejected a cease-fire proposal Friday that called for a week-long truce in the deadly conflict.

"Israel has agreed to a 12-hour ceasefire from 07:00 am Saturday," said a U.S. official travelling with Secretary of State John Kerry, according to Yahoo! News. Kerry was was leaving Cairo without securing a longer cease-fire deal between Israel and Palestinian movement Hamas.

The cease-fire suggests progress is being made toward a longer end to recent conflict in Gaza.

Kerry's proposal had called for a temporary pause in fighting to allow Israelis and Palestinians to broker a broader deal. Israeli TV reported the deal was rejected mainly because Israel would have to cut short its effort at destroying Hamas tunnels.

A Palestinian protester kicks a burning tire towards Israeli policemen during clashes following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. AFP PHOTO / AHMAD GHARABLI (Photo credit should read AHMAD GHARABLI/AFP/Getty Images) (Photo: AHMAD GHARABLI AFP/Getty Images)

A Palestinian protester brandishes a flare towards Israeli policemen (unseen) during clashes following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. AFP PHOTO / AHMAD GHARABLI (Photo credit should read AHMAD GHARABLI/AFP/Getty Images) (Photo: AHMAD GHARABLI AFP/Getty Images)

Palestinians stand behind burning tires during clashes with Israeli security forces following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. AFP PHOTO / AHMAD GHARABLI (Photo credit should read AHMAD GHARABLI/AFP/Getty Images) (Photo: AHMAD GHARABLI AFP/Getty Images)

An Israeli undercover policeman points his gun at a Palestinian man while his colleagues arrest a Palestinian (unseen) during clashes following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. (Photo: AHMAD GHARABLI AFP/Getty Images)

An Israeli undercover policeman holding a gun takes cover as he receives stones as his colleagues arrest a Palestinian during clashes following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. AFP PHOTO / AHMAD GHARABLI (Photo credit should read AHMAD GHARABLI/AFP/Getty Images) (Photo: AHMAD GHARABLI AFP/Getty Images)

Israeli undercover policemen arrest a Palestinian during clashes following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. AFP PHOTO / AHMAD GHARABLI (Photo credit should read AHMAD GHARABLI/AFP/Getty Images) (Photo: AHMAD GHARABLI AFP/Getty Images)

An Israeli undercover policeman aims his gun at Palestinian demonstrators while his colleagues arrest a man during clashes following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. AFP PHOTO / AHMAD GHARABLI (Photo credit should read AHMAD GHARABLI/AFP/Getty Images) (Photo: AHMAD GHARABLI AFP/Getty Images)

Israeli undercover policemen, one holding a gun, arrest a Palestinian (C) during clashes following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. AFP PHOTO / AHMAD GHARABLI (Photo credit should read AHMAD GHARABLI/AFP/Getty Images) (Photo: AHMAD GHARABLI AFP/Getty Images)

Israeli security forces arrest a Palestinian (C) during clashes following traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem. AFP PHOTO / AHMAD GHARABLI (Photo credit should read AHMAD GHARABLI/AFP/Getty Images) (Photo: AHMAD GHARABLI AFP/Getty Images)

Palestinian civilians inspect the rubble of a building following an Israeli military strike in Gaza City on July 25, 2014. Signs of renewed efforts for a Gaza ceasefire were evident on July 25 as the death toll continued to climb after Israel shelled a UN shelter killing 15 Palestinians. AFP PHOTO / MOHAMMED ABED (Photo credit should read MOHAMMED ABED/AFP/Getty Images) (Photo: MOHAMMED ABED AFP/Getty Images)

Palestinian civilians inspect the rubble of a building following an Israeli military strike in Gaza City on July 25, 2014. Signs of renewed efforts for a Gaza ceasefire were evident on July 25 as the death toll continued to climb after Israel shelled a UN shelter killing 15 Palestinians. AFP PHOTO / MOHAMMED ABED (Photo credit should read MOHAMMED ABED/AFP/Getty Images) (Photo: MOHAMMED ABED AFP/Getty Images)

Palestinian civilians looks at a building targeted by an Israeli military strike in Gaza City on July 25, 2014. Signs of renewed efforts for a Gaza ceasefire were evident on July 25 as the death toll continued to climb after Israel shelled a UN shelter killing 15 Palestinians. AFP PHOTO / MOHAMMED ABED (Photo credit should read MOHAMMED ABED/AFP/Getty Images) (Photo: MOHAMMED ABED AFP/Getty Images)

Palestinian civilians inspect the rubble of a building following an Israeli military strike in Gaza City on July 25, 2014. Signs of renewed efforts for a Gaza ceasefire were evident on July 25 as the death toll continued to climb after Israel shelled a UN shelter killing 15 Palestinians. AFP PHOTO / MOHAMMED ABED (Photo credit should read MOHAMMED ABED/AFP/Getty Images) (Photo: MOHAMMED ABED AFP/Getty Images)

A wounded Palestinian youth is brought into the Ramallah city hospital as at least 10,000 Palestinian protesters marching against Israel's military offensive in the Gaza Strip clash with Israeli soldiers and border police at the Israeli Qalandiya checkpoint, between Jerusalem and Ramallah, late on July 24, 2014. Israeli security forces shot dead a Palestinian man and wounded 150 other people during the massive protest in the West Bank in support of fellow Palestinians in the Gaza Strip. The confrontation, and several smaller skirmishes throughout Israeli-annexed east Jerusalem, came on Laylat al-Qadr, or Night of Destiny, when Muslims pray through the night as the holy month of Ramadan nears its end. AFP PHOTO/ABBAS MOMANI (Photo credit should read ABBAS MOMANI/AFP/Getty Images) (Photo: ABBAS MOMANI AFP/Getty Images)

A damaged car is stationed near a destroyed building after an overnight Israeli strike on July 25, 2014. Israeli fire pushed the Palestinian death toll in Gaza to above 800, as Washington pressed Israel and Hamas to agree a week-long humanitarian ceasefire and thrash out a durable truce. AFP PHOTO/MARCO LONGARI (Photo credit should read MARCO LONGARI/AFP/Getty Images) (Photo: MARCO LONGARI AFP/Getty Images)

A damaged car is stationed near a destroyed building after an overnight Israeli strike on July 25, 2014. Israeli fire pushed the Palestinian death toll in Gaza to above 800, as Washington pressed Israel and Hamas to agree a week-long humanitarian ceasefire and thrash out a durable truce. AFP PHOTO/MARCO LONGARI (Photo credit should read MARCO LONGARI/AFP/Getty Images) (Photo: MARCO LONGARI AFP/Getty Images)

Palestinian men are seen in front of a destroyed building after an overnight Israeli strike, on July 25, 2014. Israeli fire pushed the Palestinian death toll in Gaza to above 800, as Washington pressed Israel and Hamas to agree a week-long humanitarian ceasefire and thrash out a durable truce. AFP PHOTO/MARCO LONGARI (Photo credit should read MARCO LONGARI/AFP/Getty Images) (Photo: MARCO LONGARI AFP/Getty Images)

A Palestinian family walks past the debris from a building in the center of Gaza City hit by an earlier Israeli airstrike, on July 25, 2014. Israeli fire pushed the Palestinian death toll in Gaza to above 800, as Washington pressed Israel and Hamas to agree a week-long humanitarian ceasefire and thrash out a durable truce. AFP PHOTO/MARCO LONGARI (Photo credit should read MARCO LONGARI/AFP/Getty Images) (Photo: MARCO LONGARI AFP/Getty Images)

Palestinian men salvage a gas cylinder from a destroyed building after an overnight Israeli strike on July 25, 2014. Israeli fire pushed the Palestinian death toll in Gaza to above 800, as Washington pressed Israel and Hamas to agree a week-long humanitarian ceasefire and thrash out a durable truce. AFP PHOTO/MARCO LONGARI (Photo credit should read MARCO LONGARI/AFP/Getty Images) (Photo: MARCO LONGARI AFP/Getty Images)

A security officer looks at the damage caused by a rocket launched from the Gaza Strip by Palestinian militants after it damaged a home in the Israeli coastal city of Ashkelon, 13 kilometers from the Gaza border, on July 25, 2014. An Israeli soldier Yair Ashkenazy was killed in Gaza earlier in the day taking the army's losses in the 18-day operation against Islamist foe Hamas to 33, a statement said. AFP PHOTO/DAVID BUIMOVITCH (Photo credit should read DAVID BUIMOVITCH/AFP/Getty Images) (Photo: DAVID BUIMOVITCH AFP/Getty Images)

The father of killed Palestinian Mohammed al-Araj is comforted during the funeral of this son at the Qalandia Palestinian refugee camp near the West Bank city of Ramallah, on July 25, 2014, after he was shot and killed the night before during clashes with Israeli troops. Israeli security forces shot dead a Palestinian man and wounded 150 other people during the massive protest in the West Bank in support of fellow Palestinians in the Gaza Strip. The confrontation, and several smaller skirmishes throughout Israeli-annexed east Jerusalem, came on Laylat al-Qadr, or Night of Destiny, when Muslims pray through the night as the holy month of Ramadan nears its end. AFP PHOTO/ABBAS MOMANI (Photo credit should read ABBAS MOMANI/AFP/Getty Images) (Photo: ABBAS MOMANI AFP/Getty Images)

A relative of killed Palestinian Mohammed al-Araj grieves during his funeral at the Qalandia Palestinian refugee camp near the West Bank city of Ramallah, on July 25, 2014, after he was shot and killed the night before during clashes with Israeli troops. Israeli security forces shot dead a Palestinian man and wounded 150 other people during the massive protest in the West Bank in support of fellow Palestinians in the Gaza Strip. The confrontation, and several smaller skirmishes throughout Israeli-annexed east Jerusalem, came on Laylat al-Qadr, or Night of Destiny, when Muslims pray through the night as the holy month of Ramadan nears its end. AFP PHOTO/ABBAS MOMANI (Photo credit should read ABBAS MOMANI/AFP/Getty Images) (Photo: ABBAS MOMANI AFP/Getty Images)

Mourners carry the body of killed Palestinian Mohammed al-Araj during his funeral at the Qalandia Palestinian refugee camp near the West Bank city of Ramallah, on July 25, 2014, after he was shot and killed the night before during clashes with Israeli troops. Israeli security forces shot dead a Palestinian man and wounded 150 other people during the massive protest in the West Bank in support of fellow Palestinians in the Gaza Strip. The confrontation, and several smaller skirmishes throughout Israeli-annexed east Jerusalem, came on Laylat al-Qadr, or Night of Destiny, when Muslims pray through the night as the holy month of Ramadan nears its end. AFP PHOTO/ABBAS MOMANI (Photo credit should read ABBAS MOMANI/AFP/Getty Images) (Photo: ABBAS MOMANI AFP/Getty Images)

Mourners carry the body of killed Palestinian Mohammed al-Araj during his funeral at the Qalandia Palestinian refugee camp near the West Bank city of Ramallah, on July 25, 2014, after he was shot and killed the night before during clashes with Israeli troops. Israeli security forces shot dead a Palestinian man and wounded 150 other people during the massive protest in the West Bank in support of fellow Palestinians in the Gaza Strip. The confrontation, and several smaller skirmishes throughout Israeli-annexed east Jerusalem, came on Laylat al-Qadr, or Night of Destiny, when Muslims pray through the night as the holy month of Ramadan nears its end. AFP PHOTO/ABBAS MOMANI (Photo credit should read ABBAS MOMANI/AFP/Getty Images) (Photo: ABBAS MOMANI AFP/Getty Images)

An Israeli armed policeman stands guard after the traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem in East Jerusalem near the Old City, on July 25, 2014. AFP PHOTO / THOMAS COEX (Photo credit should read THOMAS COEX/AFP/Getty Images) (Photo: THOMAS COEX AFP/Getty Images)

Israeli armed policemen stand guard behind Palestinian Muslims performing the traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem in East Jerusalem near the Old City, on July 25, 2014. AFP PHOTO / THOMAS COEX (Photo credit should read THOMAS COEX/AFP/Getty Images) (Photo: THOMAS COEX AFP/Getty Images)

Israeli armed policemen stand guard behind Palestinian Muslims performing the traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem in East Jerusalem near the Old City, on July 25, 2014. AFP PHOTO / THOMAS COEX (Photo credit should read THOMAS COEX/AFP/Getty Images) (Photo: THOMAS COEX AFP/Getty Images)

Palestinians use carpets to protect themselves from the sun before the traditional Friday prayers near the Old City in East Jerusalem on July 25, 2014. Israeli security forces are on heightened alert after a Palestinian man was shot dead during a huge protest in the West Bank against Israel's military offensive in Gaza. Palestinian factions in the West Bank declared a "Day of Rage" after the previous night's clashes around the West Bank and in some sectors of Israeli-annexed east Jerusalem in East Jerusalem near the Old City, on July 25, 2014. In the background is the Dome of the Rock. AFP PHOTO / THOMAS COEX (Photo credit should read THOMAS COEX/AFP/Getty Images) (Photo: THOMAS COEX AFP/Getty Images)

Displaced Palestinian sit outside a Greek Orthodox church where many Palestinians are taking shelter in Gaza City on July 25, 2014. Israeli shell fire on a house in Gaza killed at least one person Friday, medics said, as the total death toll exceeded 800 Palestinians after one of the bloodiest days of the conflict. AFP PHOTO / MOHAMMED ABED (Photo credit should read MOHAMMED ABED/AFP/Getty Images) (Photo: MOHAMMED ABED AFP/Getty Images)

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Kerry said some "terminology" on the truce's framework still needed to be worked out, speaking at an evening press conference in Cairo where he met with U.N. Secretary-General Ban Ki-moon and Egyptian Foreign Minister Sameh Shukri.

"We don't yet have that final framework, but none of us are stopping," he said.

A deal proposed by Egypt last week was rejected by Hamas because the group said it wasn't consulted. Hamas says any peace deal must include the lifting of a blockade against Gaza.

The failure of the new cease-fire proposal comes as five Palestinians were shot and killed in protests Friday in the West Bank after Palestinians called for a "Day of Rage" against the Israeli military's operation.

The circumstances surrounding the shootings in the northern village of Hawara and the southern village of Beit Omar, near Hebron, were not immediately clear.

Security was beefed up Friday in Jerusalem and the West Bank after thousands clashed with Israeli security forces Thursday night, leaving at least one Palestinian dead. Thursday's protests at a West Bank checkpoint and in East Jerusalem marked the largest demonstrations in those areas in several years.

The violence follows the shelling Thursday of a U.N. school, where at least 15 were killed and dozens wounded as the U.N. was trying to evacuate civilians in the northern town of Beit Hanoun.

The Palestinian Red Crescent said Israeli shells hit the school. The Israeli military said it was reviewing the incident and suggested Hamas-launched rockets may have been responsible for the deaths.

The conflict — in its 18th day — has killed 828 Palestinians and left 5,200 injured, said Ashraf al-Kidra, a Palestinian health official. In Israel, 38 people have been killed since July 8, including 35 soldiers, two Israeli civilians and a Thai worker.

The Israeli military said Friday that Oron Shaul, an Israeli soldier Hamas claimed to be holding, was in fact killed in battle Sunday.

In Tel Aviv, an Air Canada flight from Toronto aborted its first landing attempt Friday after Hamas fired several rockets toward Ben Gurion International Airport. But the Boeing 767-300 landed safely 10 minutes after the go-around and the airline plans to continue flying to Israel.

Five miles before landing, flight AC84 was advised by local air-traffic controllers to perform a standard go-around "until airspace conditions could be confirmed as safe for landing," said Isabelle Arthur, an airline spokeswoman. The plane landed safely at 12:07 p.m. and return flight 85 departed for Toronto at 1:59 p.m., Arthur said.

Meanwhile, Palestinian Justice Minister Saleem Al-Saqqa and Ismail Jabr, the Gaza court public prosecutor, filed a complaint to the International Criminal Court on Friday, accusing Israel of war crimes, including apartheid, attacks against civilians, excessive loss of human life and colonization.

Early Friday, Israeli planes hit 30 houses throughout Gaza, including the home of Salah Hassanein, a leader of the military wing of Islamic Jihad, the second-largest militant group in Gaza after Hamas. Hassanein and two of his sons were killed in the strike, said Gaza police spokesman Ayman Batniji and al-Kidra. The Israeli army confirmed the strike.

Support for Hamas, in spite of the casualties — or some say because of them — is growing in Gaza.

"The problem is not with Hamas, the problem is the occupation," said Arafat Yasin, 46, a displaced resident from the Shijaeyyah neighborhood in east Gaza City that came under heavy bombardment last weekend. "The Palestinian Authority has been engaged in peace talks with Israelis for over 20 years, and the actions of the Israelis reflect their unwillingness to end their occupation."

"It's clear that they – the Israelis — are not interested in peace," he said.